The second Android phone will act as the terminal to execute terminal commands onto the Redmi 9A.
without a PC using the patched boot image method typically requires a second Android device to act as the "controller" for flashing . This is because the
Copy the magisk_patched.img file to your external SD card (recommended).
Choose and pick your extracted boot.img .
Tap . Magisk will modify the file and save the output in your Download folder as magisk_patched_[random_strings].img . Step 4: Flash the Patched Boot Image Without a PC
Rooting any device carries inherent risks. For the Redmi 9A, the following are particularly important: